20821311432161697

Names of 20821311432161697

• Cardinal: 20821311432161697 can be written as Twenty quadrillion, eight hundred twenty-one trillion, three hundred eleven billion, four hundred thirty-two million, one hundred sixty-one thousand, six hundred ninety-seven.

Scientific notation

• Scientific notation: 2.0821311432161697 × 10¹⁶

Factors of 20821311432161697

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 967

Divisors of 20821311432161697

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 19 31 37 57 93 111 361 589 703 877 961 1083 1147 1369 1767 2109 2631 2883 3441 4107 6859 11191 13357 16663 18259 20577 21793 26011 27187 32449 33573 35557 40071 42439 49989 54777 65379 78033 81561 97347 106671 127317 212629 253783 316597 346921 414067 494209 516553 616531 637887 675583 761349 769129 806341 842797 949791 1005919 1040763 1200613 1242201 1315609 1482627 1549659 1849593 2026749 2307387 2419023 2528391 3017757 3601839 3946827 6015343 6591499 7867273 9389971 9814507 11714089 12836077 14613451 15320479 16013143 18046029 19112461 19774497 22811647 23601819 23842999 24996571 28169913 28457773 29443521 31183489 35142267 37219003 38508231 43840353 45961437 48039429 57337383 68434941 71528997 74989713 85373319 93550467 111657009 186475633 222567691 243885463 277655569 291089101 304249717 363136759 433421293 453016981 474934849 540697687 559426899 592486291 667703073 707161057 731656389 739132969 832966707 873267303 882190963 912749151 1052937601 1089410277 1153789093 1300263879 1359050943 1424804547 1622093061 1777458873 2121483171 2217398907 2646572889 3158812803 3461367279 5275455811 5780744623 6899598421 8235004567 8607322639 9023762131 10273256053 11257239529 13436060083 14043526411 15826367433 16761628297 17342233869 20005814419 20698795263 21921992767 24705013701 25821967917 27071286393 27347919853 30819768159 32641065631 33771718587 40308180249 42130579233 50284884891 60017443257 65765978301 82043759559 97923196893 163539130141 195191865007 213887551051 255285141577 266827001809 318470937643 380110473961 416517862573 490617390423 519610477207 585575595021 620180246989 641662653153 765855424731 800481005427 955412812929 1011873034561 1140331421883 1249553587719 1558831431621 1860540740967 3035619103683 5069713034371 6050947815217 7222099005259 7913839388887 9872599066933 11783424692791 15209139103113 18152843445651 19225587656659 21666297015777 23741518166661 29617797200799 35350274078373 57676762969977 187579382271727 223885069163029 365286165476521 562738146815181 671655207489087 1095858496429563 6940437144053899 20821311432161697
• Sum of all divisors σ(n): 31155632809650720
• Sum of proper divisors (its aliquot sum) s(n): 10334321377489023
• 20821311432161697 is a deficient number, because the sum of its proper divisors (10334321377489023) is less than itself. Its deficiency is 10486990054672674

Bases of 20821311432161697

• Binary: 1001001111110001101111101010111101010111111100110100001₂
• Hexadecimal: 0x49F8DF57ABF9A1
• Base-36: 5P0JEF8DMZL

Squares and roots of 20821311432161697

• 20821311432161697 squared (20821311432161697²) is 433527009755067377813266353919809
• 20821311432161697 cubed (20821311432161697³) is 9026600884364059930489991025921748872586259355873
• The square root of 20821311432161697 is 144295916.2005692281
• The cube root of 20821311432161697 is 275107.6666332909

Scales and comparisons

• 20,821,311,432,161,697 seconds is equal to 662,053,298 years, 51 weeks, 6 days, 4 hours, 54 minutes, 57 seconds.
• To count from 1 to 20,821,311,432,161,697 would take you about one billion, nine hundred eighty-six million, one hundred fifty-nine thousand, eight hundred ninety-six years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 20821311432161697 cubic inches would be around 22925.6 feet tall.

Recreational maths with 20821311432161697

• 20821311432161697 backwards is 79616123411312802
• 20821311432161697 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 20821311432161697's digits is 57
• More coming soon!